Valve.



E. OMALLEY.

VALVE.

APPLICATION FILED APB. 25. 1910.

Patenaea 1380.20, 1910.

2 SHEETS-SHEET l.

Hozuu 1:. OMALLEY.

VALVE.

PPLMTIOH FILED 32.25. 1910.

Patented Dec. 20, 1910.

2 SHEETS-SHEET 2.

TICQJT- f 'ul v UNITED STATES PATENT oEEroE.

lEIDIFAED O'MALLEY, OE JACKSON, TENNESSEE, ASSIGNOR, BY DIRECT .ANDMESNE ASSIGNMENTS, TO OMALLEY-BEARE VALVE COMPANY, F CHICAGO, ILLINOIS,A.

CORPORATION OF DELAWARE.

VALVE.

Specification of Letters Patent. IafhelltjAi Dc. 20, 1910.

Application filed Api-i1 25, 1910. Serial No. 557,363.

' or both members, with removable wearing vvalve heads surfaces, and itis the further object of this invention to malte these removable wearingsurfaces of such form and thickness that the maximum economy of metal isaccomplished in their construction, so that when one of the removablesurfaces becomes worn or damaged it may be removed and discarded withbut little expense te the user.

The advantages of such an invention are obvious. At the present time'agreat many and valve seats are either formed integrally with therespective parts, or if they are removable they are of such dimensionthat great waste would be incurred if they should be discarded, and forthis reason in most cases they are reground or refaced whichnecessitates the removal of the damaged part, the employment of parmovedand discarded without the use of special tools and a new member beimmediately replaced, and the parts placed in working order with butlittle delay to the operation of the valve. It is also a part of thisinvention to apply a plurality of these removable parts in nestvform, sothat when the outermost one becomes Worn or damaged it may be removedand thereb preseating the one next below, which wi provide a new member,so that the function of the parts in the operation of the valve may becontinued immediately.

While the preferred form of this invention is illustrated in theaccompanying sheets of drawing, yetit is to be understood that minordetail changes may be made without departing from the scope thereof, andwhile one means of attaching the removable members is illustrated inthis application, it is g to be understood that these members may beheld 1n place in the manner described in my prior applications, SerialNos. 489,262;

494,329; and 581,599 in which removable members are disclose Figure l isa longitudinally sectional view illustrating the application of aplurality or nestbf removable members to a globe valve with parts of thevalve broken away. F 1g. 9 1s a view in side elevation of a plurality ornest of removable members. Fig. 8 1s a top'plan View of the constructionin lf 1g. Figa/L is a detail view partly in section illustrating theapplication of a single E removable member to the head or areciproeating valve. Fig. 5 is a detail view in cross sectionillustrating the application of a single removable member to a valveseat.

.Figzv is a top plan view of the construction 1n xg. 5. Fig. 7 1s a viewin end elevation of a single removable member to be applied to a valveseat. Fig. 8 is a top plan view of the construction in Fig. 7. A

In Fig. 1, the removable members are shown in nest form secured to thehead and Seat of the usual form of globe valves. In th1s case theplurality or nests of removable members as secured to the seat may betermed seat plates, and are held in place upon the integral seat of thevalve. The removable members as secured in place upon the head are alsoin nest form and may be termed head plates. As is customary in valves ofthis type, the seat is in the form of a rm l extending upward from thebridge or we of the valve. The nest of removable seat plates comprises aplurality of very thm plates 2 corresponding in size to the contour ofthe valve seat, and are secured in placel thereon by a securing ring 3having an inturned flange 4 adapted to engage the uppermost plate. Theexterior of the upper pro]ect1ng seat member 1 is screw threaded and theinterior of the securing ring 3 is corresplondingly screw threaded toseated, the head proper wil remain sta- 116.

tionarv in engagement with the seat as the stem is being rotated at. theclosing of the valve. To accomplish this the end of the valve stem isprovided with an outstanding flange or disk 'a' of greater diameter`than the stem noper. The valve head 5 is provided with an aperture. toreceive the enlarged head of the stem and the inner walls of thisaperture are screw threaded to .receive a similarly screw threaded nutS, which will when secured in place allow of the rotation of the valvestem within the valve head. The valve head on the under side is providedwith an enlarged depending screw threaded member 9 and a at surface l0upon which the nest of head plates l1 is secured by the securing nut 1Qupon the enlarged depending member 9.

In employing a nest of plates it is preferable that the plates besecured in alinement. with each other by wiping the edges thereot` withsolder. In case it is desirable to use but; a single removable seatplate in connection with the ordinary valve head in which the valve headis rigidly mounted upon the Vvalve stem provision 1s made wiereby the YWhere the screw threaded outer portion of the seat member engages theweb, so that when the securing ring is advanced as far as possible therewill be sutlicient play between the intnrned securing flange of the,ring and the seat plate to allow the seat plate to turn upon tte seat.member.

Then itis desired to apply a single removable head plate to a head ofthe character illustrated in Fig. l, and the valve seat is of theordinary construction, the valve head 5 is provided with a recess 13between the central depending screw threaded member 9 and the flatportion 10 of the valve head adapted to receive the head plate. Thesecuring nut l2 is provided with a Vreduced portion 1l adapted to enterinto the recessed portion of the valve head, and the outstanding flangeor plate engaging member 15 of the nut is so constructed in relation tothe reduced portion that when the nut is completely seated and thereduced portion is in engagement with the bottom of the recessed portionof the valve head, the head plate will have sutiicient play between thesecuring nut and the valve head to allow it to rotate thereon as thehead advances downward and comes into engagement with the valve seat asthe valve is being closed.

' Fig. 4.- illustrates a valve head in which the head 16 is rigidlysecured to the valve stem 17, and the under side. ot' the valve head ipresents a continuous ilat surface 1S from the circumference thereof tothe enlarged central screw threaded depending member 19. In this casethe securing nut :20 provided with an outstanding securing flarge Q1adapted to engage the head plate '22 and the side of the llange inproximity to the head is recessed suhiciently to allow of a play of thehead plate between the securing portion of the nut and the head. for thepurposes above described.

Figs. 5 and 6 illustrate the` application of a single removable seat.plate Q3 as applied to a'valve seatin which a valve head ot' theordinalv type is employed. In this case the seat member 24 presents aflat surface for engagement with the removable seat plate, and the seatplate is slightly less in diameter than the seat member. rihc exteriorof the seatimember is screw thr ided and is adapted to engage with theinner screw threaded portion of a securing ring 25. The securing ring isprovided with a plurality ot' spaced apart inwardly projecting members2G which are shouldered to engage the upper surface of the seat memberwhen the securing ring is in place. The inner side of these memberswhich engage the seat plate are recesscd sufficiently to allow of arotary movcment of the seat plates upon the seat member when the valvehead comes in contact. with the seat plate in the closing movement ofthe valve.

The removable plates for both the heads and seats of valves, as shownaud described, are so constructed as to contain the minimum amount ofmetal in each plate for the purpose specified. In both forms the platesare circular having a central circular cut out portion, so that thewidth of the metal forming the plates is justsuticieut to be engaged bythe other operating member ot' the valve and allow for the securingmeans which attaches the plate in place to its respective valve member.By this construction a great deal of metal is saved in the manufactureot' the plates. The plates are preferably made from relatively hardmetal` so that the)v will have sullicient bodyr when secured in positionto accomplish their function, and at the same time increase theirduration. Such metal as nickel, brass, phosphor bronze, or similar hardtough metals answer the requirements and will produce a plate that willlast ap proximately as long, without removing or changinff as theordinary stationary valve o or seat members. As these plates will remainin `goed operative condition approxi-V r.'

n masso 8 cial value of such a construction is therefore evident. Toconstruct Athese platesso that a Worn or scored plate may be discardedwithout a loss to the owner and make the application of this inventionnot only practical, but a great saving to the user, these plates aremade extremely thin. In regrind ing er refacing a valve head or valveseat, either of the removable or Stationary form, a certain amount ofmet-ai must be removed in thisprocess from the respective member, inorder to cut below the scored or damaged portion and present a perfectlytrued sur- Y face, and the 'metal thus removed not only shortens theduration of usefulness of this operative part, but is a total loss tothe owner.

The plates construct-ed in conformity to this invention are preferablyony of that thickness which would correspond to the amount of metalremoved in the refacing or resurfacing of the corresponding member invalves heretofore used. It will therefore be seen that bv the use of theplates of this invention: `the discarding of a worn or scored plate notonly sav time and expense of refacing or resurfacing the correspondingmember, but the Worn or scored plates may be discarded without loss tothe owner ofthe valve and without shortenlng the operative life of theparts thereof. By constructing and securing the plates in the mannerdescribed a great saving of material is obtained, not only on account ofthe thinness of the plates, but on account 0f their'contour.

These plates may be stamped directly A from sheets of metal, Whosesurfaces have 'been previously trued, or they may be made hard metal fortheicontactmg parts of valves similar in form to the contacting partandof the thickness of the'depth 'of metal removed in grinding and refacinga Worn contacting part corresponding thereto.

2. A removable thin fiat Wearing surface plate of hard metal for thecontacting parts of valves similar in form to the contacting part, andof the thickness of the depth of the metal removed in grinding andrefacing a corresponding contacting part Worn by continual operation ofthe valve.

3. In a valve including contacting head and seat members, a thin Wearingsurface plate and means for removably and rotatably securing the plateupon one of the members.

et. Wearing surface plates of hard metal for the contacting parts ofvalves similar in form to the contacting parts and of the thickness ofthe depth of metal removed in grinding and refacing a Worn contactingpart corresponding thereto, in combination with means for removablysecuring the plates to one of the contacting parts, said means engagingthe plate at the edge of the portion of actual Contact.

5. In a valve having contacting parts, a.v

Wearing surface plate for the contacting parts similar in form theretoand of the thickness of the depth of metal removed in grinding andrefacing a Worn contacting part corresponding thereto, and means forremovably and rotatably securing the plate to one of thecontacting arts,said means engaging the plate at an e ge of the portion of actualcontact. Y

6. In a valve including a valve head and seat member, a thin wearingsurface plate of hard metal for the contacting parts, and

means for removably and rotatably securing the plate to one o hecontacting parts.

EDWAIL.. OMALLEY.

Witnesses:

I. B. Pieno, R. L. Bamm.

